All moneys accruing to any county from the assessments as provided in this division shall be placed in the county treasury or depository, as the case may be, to the credit of a special fire protection fund, which fund shall be used or disbursed by said county commission only in participating in the State Forestry Commission’s fire protection program within such county under such procedures and policies as may be prescribed by the State Forestry Commission. Any unexpended balance in said fund at the end of any fiscal year shall remain therein for use during the ensuing fiscal year.